Cotton fiber product having smooth surfaces and method of producing compound fiber product from cotton and regenerated cellulose fibre

Abstract

The present invention provides the cotton fibers and fabrics containing thereof, which are excellent in dyeability and has gloss on surfaces and soft touch, or in otherwise to produce cotton-regenerated cellulose composite fiber product that has improved coloring evenness between the cotton fibers and the regenerated cellulose while keeping soft touch and sufficint dyeability. Yarns, fabrics or the like is subjected to processing with aqueous solution of alkaline metal hydroxide having surface tension of no more than 75 dyn / cm 2; the processing being made under no tensile stress until static friction coefficient of the cotton fibers become 50 to 75% of that before the processing, or the processing being made under tensile stress until the static friction coefficient become 40 to 65% of that before the processing.

Description

technical field

[0001] The present invention relates to a method for the manufacture of fiber products containing cotton fibers. First, it relates to a cotton fiber product having excellent hand feeling, luster and dyeability, and more specifically, to a method for producing a cotton fiber product with a smooth fiber surface. The cotton fiber products here are yarns, cloth and raw cotton containing cotton fibers. Next, the present invention relates to a method for producing a fiber product having improved dyeability (same color) without impairing softness of a composite fiber product made of cotton fibers and regenerated cellulose fibers. technical background

[0002] Cotton fiber fabrics have the following problems: lint is generated when part of the surface falls off, and even when dyed with a dark dye, it is difficult to form a dark color, and it appears in a whitish and blurred state, and the color is not deep.

[0003] Therefore, so-called "mercerization" (mercerizati...

Examples

Embodiment 1-1

[0079]As a cloth made of cotton fibers, use a 0.1% by weight aqueous solution of an anionic-nonionic mixed active agent (manufactured by Nikka Chemical, Sunmol BH-75) at 80° C. for 20 minutes, and then use hydrogen peroxide (35%) 15% by weight and 0.2% by weight of sodium silicate and 0.1% by weight of sodium hydroxide aqueous solution bleached cotton fibers (30 single yarn) under the condition of 90 ℃ * 60 minutes plain weave fabric. The plain weave fabric was dipped in a 20°C aqueous solution containing 45% by weight of potassium hydroxide for 60 seconds without applying tension, and then subjected to two 10-minute hot water washes at 80°C. Next, neutralization was carried out at 80° C. for 10 minutes with a 0.05% by weight aqueous solution of acetic acid to completely remove the alkali. After that, SUMIFIX BLACK E-XF (manufactured by Sumitomo Chemical Industries, Ltd.) at a concentration of 5% owf (% by weight of the dye compound relative to the weight of the fiber) was use...

Embodiment 1-2

[0085] The same fabric as in Example 1-1 was immersed in 5% by weight of sodium hydroxide, 40% by weight of potassium hydroxide and an anionic surfactant (manufactured by Daido Synthetic Chemical Industry Co., Ltd. S0600) in a 5% by weight aqueous solution for 60 seconds, then perform two 10-minute hot water washes at 80°C, and then neutralize with 0.05% by weight acetic acid aqueous solution at 80°C for 10 minutes to completely remove the alkali. Then dye with the same prescription as Example 1-1. The evaluation results are shown in Table 1.

[0086] As shown in Table 1, by adding a surfactant as a penetrating agent, the surface tension of the treatment liquid becomes 30 dyn / cm 2 , and the same as Example 1-1 before adding surfactant, about 70dyn / cm 2 .In addition, the treatment was carried out until the coefficient of static friction was about 56% of that of the unprocessed product. In Example 1-2, dyeability, luster, and pilling were all superior to those of Example 1-1. ...

Embodiment 1-3

[0089] Tension was applied and treated under substantially the same conditions as in Example 1-2. That is, the same fabric as that used in Example 1-1 was immersed in 5% by weight of sodium hydroxide, 40% by weight of potassium hydroxide and an anionic surfactant (manufactured by Daido Synthetic Chemical Industry Co., Ltd. 1 ルS0600) 5% by weight aqueous solution for 60 seconds, followed by two 10-minute hot water washes at 80°C, and then neutralized with 0.05% by weight acetic acid aqueous solution at 80°C for 10 minutes to completely remove the alkali. Then dye with the same prescription as Example 1-1. The evaluation results are shown in Table 1.

[0090] As shown in Table 1, although the treatment liquid was the same, by applying tension, the decrease in the coefficient of static friction was slightly larger than in the case of Examples 1-2. However, the dyeability, luster, pilling property, and touch were all the same as in Examples 1-1 to 2 and the like. Additionally, ...

technical field

[0001] The present invention relates to a method for the manufacture of fiber products containing cotton fibers. First, it relates to a cotton fiber product having excellent hand feeling, luster and dyeability, and more specifically, to a method for producing a cotton fiber product with a smooth fiber surface. The cotton fiber products here are yarns, cloth and raw cotton containing cotton fibers. Next, the present invention relates to a method for producing a fiber product having improved dyeability (same color) without impairing softness of a composite fiber product made of cotton fibers and regenerated cellulose fibers. technical background

[0002] Cotton fiber fabrics have the following problems: lint is generated when part of the surface falls off, and even when dyed with a dark dye, it is difficult to form a dark color, and it appears in a whitish and blurred state, and the color is not deep.

[0003] Therefore, so-called "mercerization" (mercerizati...

Examples

Embodiment 1-1

[0079]As a cloth made of cotton fibers, use a 0.1% by weight aqueous solution of an anionic-nonionic mixed active agent (manufactured by Nikka Chemical, Sunmol BH-75) at 80° C. for 20 minutes, and then use hydrogen peroxide (35%) 15% by weight and 0.2% by weight of sodium silicate and 0.1% by weight of sodium hydroxide aqueous solution bleached cotton fibers (30 single yarn) under the condition of 90 ℃ * 60 minutes plain weave fabric. The plain weave fabric was dipped in a 20°C aqueous solution containing 45% by weight of potassium hydroxide for 60 seconds without applying tension, and then subjected to two 10-minute hot water washes at 80°C. Next, neutralization was carried out at 80° C. for 10 minutes with a 0.05% by weight aqueous solution of acetic acid to completely remove the alkali. After that, SUMIFIX BLACK E-XF (manufactured by Sumitomo Chemical Industries, Ltd.) at a concentration of 5% owf (% by weight of the dye compound relative to the weight of the fiber) was use...

Embodiment 1-2

[0085] The same fabric as in Example 1-1 was immersed in 5% by weight of sodium hydroxide, 40% by weight of potassium hydroxide and an anionic surfactant (manufactured by Daido Synthetic Chemical Industry Co., Ltd. S0600) in a 5% by weight aqueous solution for 60 seconds, then perform two 10-minute hot water washes at 80°C, and then neutralize with 0.05% by weight acetic acid aqueous solution at 80°C for 10 minutes to completely remove the alkali. Then dye with the same prescription as Example 1-1. The evaluation results are shown in Table 1.

[0086] As shown in Table 1, by adding a surfactant as a penetrating agent, the surface tension of the treatment liquid becomes 30 dyn / cm 2 , and the same as Example 1-1 before adding surfactant, about 70dyn / cm 2 .In addition, the treatment was carried out until the coefficient of static friction was about 56% of that of the unprocessed product. In Example 1-2, dyeability, luster, and pilling were all superior to those of Example 1-1. ...

Embodiment 1-3

[0089] Tension was applied and treated under substantially the same conditions as in Example 1-2. That is, the same fabric as that used in Example 1-1 was immersed in 5% by weight of sodium hydroxide, 40% by weight of potassium hydroxide and an anionic surfactant (manufactured by Daido Synthetic Chemical Industry Co., Ltd. 1 ルS0600) 5% by weight aqueous solution for 60 seconds, followed by two 10-minute hot water washes at 80°C, and then neutralized with 0.05% by weight acetic acid aqueous solution at 80°C for 10 minutes to completely remove the alkali. Then dye with the same prescription as Example 1-1. The evaluation results are shown in Table 1.

[0090] As shown in Table 1, although the treatment liquid was the same, by applying tension, the decrease in the coefficient of static friction was slightly larger than in the case of Examples 1-2. However, the dyeability, luster, pilling property, and touch were all the same as in Examples 1-1 to 2 and the like. Additionally, ...

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